Gas burner



Feb. 15 ,1927.

M, J. ROBERTS GAS BURNER Filed Feb. l. 192.5

INI?

Patented Feb.. 1s, 1927.

.UNITED STATES `unnniizan J. noBEnfrs, or roNAwAN-na," NEW Yonx. y

,Gas BURNER. I'

Application mea February 1,' 1s2a serial No. 85,307.

This invention relates to burners for consuming a mixture of air and-gas and provides. a burner having independent chambers, the/mixture of'air and gas being supplied toJone of the chambers, designated as the primary chamber, the other chamber,

'designated Ias the secondary chamber, re-

ceiving'air in regulated .quantity -and provided with outlets to which the'gaseous mixture from the primary chamber isdelivered by burner tubes, the mixture and air'from the two chambers combining and mixing at the outlets of the secondary cham-berlto produce an intense heat when consumed.

While the drawings illustrate a preferred embodiment of the invention it is to be understood that in adapting the means to meet specific needs and -requirements the desion may be varied and such other changes in t e minor details of construction may be` resorted to within 'the scope ofthe invention i ing upon its particular application, the s' as claimed Without departing from the lspirit thereof. l

For a full understanding ofthe invention and the merits thereof, reference is to behad to' the following description and the drawingshereto attached, in which,

v Figure 1 is a top plan view'of a gasburner embodying the invention,

eous mixture and asecondary chamoer. adapted to receive an' for combining with the gaseous mixture at the flame outlet. As Shown inthe accompanying draWings,-th e burnerv is of circular outline', but as stated, the configuration is none'ssential. For con- -venience the burner is formed in sections which are assembled and bolted, or otherwise secured. This enables theburner to be readily cast.

The numeral designates thebody of the burner which is provided with outlets 2 disposed by preference, V-at the upper, outer side.v A partition 3 subdivides the interiol'.

l of the burner into chambers 4 and 5, the l outlets m. the Ppe POI'ton o its outer side,v Y

chambe`4'being adapted to receivethe gaseous mixture and is designated as-thepri-l mary chamber. 1 The .chamber'5, designated? as the secondary chamberis adapted to ber supplied with air which is added to and commingles with the gaseous mixture at. the

outlets '2. Burner tubes 6 are `set intQ. the partition 3 and communicate with the primary chamber 4 and terminate Within, or

adjacent the outlets 2, so as to linsure air y from the secondary chamber 5 commingling with thegaseous mixture escaping from the outerl ends of the burner tubes 6. The gascous mixture may be supplied to, the primarychamber 4 inany determined way and, 70 .as shown, a gas pipe 7 has outlets opening into mixing tubes 8 which yare in communication with the primary chamber'v 4, prefer- `ably at Vopposite points, as indicated 4most' clearly in both views of the/drawings. An.

air p1pe'9 connects with the lburner at opposite points to equalize 'fthe supply of airthereto, and this pipehas a branch l10 which receives air in regulated quantity through the instrumentality of a damper l11 asso- 80 ciated therewith. Y

The gaseous fuel froln a suitable source",

of supply isdelivered to' the tube 8 and is mixed` wlth air, the gaseous mixture passing from the mixing tube into the primary .95

chamber 4, and from the latter through the burner tubes6 and through the outlets 2'of the burner. A ir, being supplied to the ipe 9l in regulated quantity enters the secon aryv chamber 5 andA passes th (lame is intensified by the air escaping through the outlets 2 and since this second# 05 v ary supply jot-airsl isrestricted there is nd loss of heat, as is experienced where the secondaryV supply of air is not controlled. When the secondary air su ply is not controlled, anexcess results, tiereby loweringv the eliiciency of the burner, but in/ the pres` ent instance this objection is overcomegby A f v controlling thevsecondary yair supply to the amount required for perfect vcombustion,-

thereby preventing' the cooling of the sur- 105 face of the burner,'as is vthe'case when the secondary air supplylis uncontrolled and in the open.

claim: y. .l 4 1. An annular gas-burner rovided with.

lflAJgrflEN'T f i erefrom through the 4outlets 2, mixing with the gas discharging at the outer end .of the burner `tubes 6. 'When 'the gaseous mixture is ignited the Having thus y described the invention, IA

a partition 'diyiding the burner into an inner gas chamber and an outer air chamber, tubes supported' in thel partition and radiating partition ,and radiating therefrom and ex#- tending across the'air chamber and termitherefrom andl extending lacross the air chamber and terminating within'the outlets,

means for supplying gas to the inner chamber at different points and means for supplying air at diferent pointsto the outer chamber.

rovided in the upper partition dividing the burner into an inner annular gas chamber and an outer annular air chamber, burner tubes carried by the nating Within the outlets, means for supplying gas to thevinner chambers of the. sections and means for supplying air to the outer N chambers of the sections.'

. 1n testimony whereof I aix my signature.

'MILLAR-D J. RO'ERTS. [L s] 

